I agree the time should be extended a bit. In beta as sweet tooth I use my lvl 3 about once in a match every now and again then just keep poping lvl 1 over and over. GRENADE IN THE CHEST FOOL! But when you do pop your lvl 3 as certain chars you can get up to 6 - 8 kills. Ive gotten 9 one time and I felt awesome at the end of the match.